Wireless microphone



FIG. 1 is a perspective view of the wireless microphone;

FIG. 2 is a front view of the wireless microphone;

FIG. 3 is a back view of the wireless microphone;

FIG. 4 is a right side view of the wireless microphone;

FIG. 5 is a left side view of the wireless microphone;

FIG. 6 is a top view of the wireless microphone; and,

FIG. 7 is a top view of the wireless microphone. 

What is claimed is the ornamental design for a wireless microphone, as shown. 